Pipe wrench



9d. 1 c. J; HARRIS PIPE WRENCH Filed May 24. 19

i w Tr w a Z m w /M able connection for such a jaw to the fixed Patented'a. 4, 1927.

CHARLES J.- HARRIS,

I i a M le PIPE WRENCH.

Application filed May'fl l,

This invention relates to improvements in pivoted jaw pipe wrenches. 1 v1 r The objects o'fthe inventionareq I j First, to provide'an improvedconstruction of pivoted outer jaw. I

Second, to providean improved adjustinner jaw. Third, to provideimproved retaining means forthe jaw. v

Fourth, to provide an improved construction in which the pivoted jaW.can be reversed. 1. V p

Objects relating to .details and economies of construction and operationotmy invention will definitely appear from the detailed description tofollow. 7

The invention is clearly defined and pointed out in the claims. I 1

A structure which is a preferred embodiment of my invention isillustratedin the accompanying drawing, forming a part of thisapplication, in which:

Fig. 1 is a side elevation view of my meproved wrench showing thepivoted aw 1n the second adjusting position, portions being 7 indicatedby dotted lines.

Fig. 2 is a similar elevation View showing the pivoted jaw swung1ntoengagement,a portion of the mam part ofthe wrench being in sectionand the adjustment of the retainer and the pipe being shown by dottedlines.

Fig. 3 is an edge elevation view from the right hand side of F igs. 1and 2 showlng details.

Fig. 4: is a side elevation view of the upper part of the wrench withthe pivoted jaw reversed and in the first or lowest position.

Fig. 5' online 5-5 of Fig. 2, with the jaw prvot indicated in full line,showing the pro ectlng lugs 28 on the jaw head. I

The parts will be identified by their numerals of reference which arethe same in all the views. I

s 1 is the wrench handle formed flat and integral with the fixed jawhead 2 which is suitably serrated at 21. This jaw head ex-p tendslaterally and is notched on the under side at 22 with a series ofnotches for. the adjustment of the pivoted jaw into different spacedrelations.- Projecting lugs 23 are at is a detail transverse sectionalview V 1926." Serial No. 111,294.

th'e laterally projecting of the jaw head 2 forengagementfw'ith-thepivoted jaw in its disengaged position to hold the samein positionreadyfor use. These projecting lugs'23 a a are seen in elevation in allthefirst four figures and insectlon in Fig.5.

. 3 is the pivoted jaw slotted at centrally I and longitudinally to formthe side pieces 31, 31see Fig. 3. It has an integral pivot 1 cross bar'32 constitutingthe 'pivot'jof thej a w which engagesthenotches 22successively 1n the difl'erent POjSltlOIlSjfOI purposes Offlfldjustment. The spring bar 4 yields sufliciently to permit adjustment fromnotch to V notch without disengaging the spring; This aw v isretainedadjustably in place by ih e spring rod 1,1the upper end ofwhich-is suit-.

ably'pivoted at 41in the outer end of the fixed aw head 2. A notchedprojection 11 is on the back side ofthe handle to receive" the free end42 of the spring bar 4; whichsnaps to place.- V

To assemble the wrench the spring 41's thrown out of engagement at e 12and the handle 1 is inserted'through the aperture .30 of the plvotedjawand the jaw put in posi-' tionas indicatedin thevarious figures andsnapping the bar 4 to place. The spring bar.

4: yields sufficiently to permit adjustment from notch to notch withoutdisengaging the spring.

By removing the jaw and reversing it into the position indicated 1n Fig.4, a wrenchfor still smaller work is produced so that with this simpleconstruction a wrench of very large capacity is produced havingpractically four difi'erent adjustments, each of wide capacity.

The structure 1s such that it can be all drop forged and-consequentlythere are no pivots or rivets or movable parts to be driven into anypart.

has no work to do except to retain the pivot-,

ed jaw in place until it engages its work From what I have described itis "clear that the structure is capable of considerable modificationwithout departing from my invention. It is not necessary that thejstructure be an'adjustable structure in'order to be avery satisfactorywrench as a single notch would be 'all' thatwould be required for manypurposes. A series of notches,

. Wide L a-pacity as The Structure j me garstafids. heavystrains. r a

fit-be 'rovi de a 'ff there orefdes' ire tofolaim the invention broadlyand also 'speeifioally as pointed out in ithe" appended Claims.

1:. In a pivoted jaw wrenolr, the combina- 3 tipli of La handle with a";suitable Y lateral-1y 2101mm: as new andidesire fto secnre by l eh f ,lnotc'hes on its under: side adjustmentand at itsj'projecting-extremit ajvpiv-l m'obedj w'slottediteupassov'er the 'saiflhandle youth? e said-"awheadwithfa pivot at the I le iverkand of tlieqslotitoengagethe notchessue relma j 'p z w p v d i the lfitfiitill jprojeeti'onfo f -said jawhead and 1 adapteww detachablyfiengage a suitable *ili ab y, n posi omfasp c fi a a l 7 2; In La pivoted jawwrenoh; the combinah QW ever, Amaliea, coinplete 'adjilstment otf Q WhilejI have shown avery simple bar 4"in: mt e ning th par s in. p a e, ther means.

' P prajeetiag fixed y awh d-jin egra erewith 1 serrated eni its oulte'rface and-- having notch; for retaining the saidfpivoted jaw; ad

' x In witness fie a h ve-1 ith? a b l e l Y i l jecting fixed jaw headintegral therewith V andserratedonits outer .faoe' and having a pivotedjaw slotted. to ,pass over "the said at the lower end of the slot toengage the notches successively.

3. a pivoted jaw wrench, ooinbination of'a' handle with a suitablelaterally projecting "fixed aw head integral therewith andserr'a'ted onits outerfface and havinga notch OIlltS unders de'and lateral lugs atnotohes on its under side foradjustI-nent and ,lateral lugs at'itsprojecting extremity and 1 handleonto the said jaw headkwith a pivot.

its projeetin-g extremity, and a pivoted jaw slotted'topass over thesaid handle ontothe saidjaw head with apiVot at the lower end of theslot to engage the notch. I

4. In a wrench, the combination-of a suitl able handle. and laterallyprojeotingffined v 'j aw he'ad formedintegrallytogether with a Vserrated jaw face at right angles to said handle; and a pivotedreversible jaw slotted to pivot over'the saidfixed j awwith a suitablepivoted 'yieldahle retainer to hold the samedetaohably in place, asspecified hand; V J. HARRIS.-

whereof I have hereunto set my

